Plot hole: In the episode where Jessica went home to her family's house in season 2, Bill said "someone who lives here must invite me in." In this episode, Russell Edgington's wolf (Coota) invites Russell into Alcide's apartment. Also, in Season 6 Sarah Newlin recinds Jessica's invitation into Jason's house (which only Jason should be able to do).
Cold Ground - S1-E6
Continuity mistake: When Sookie is eating Adele's pie, the amount of pie on the fork keeps changing between shots. (00:41:25)
Revealing mistake: When Sookie finds Dawn dead, in the close-up of Dawn's body, you can see the actress' pulse at the base of her neck. (00:50:55)
Revealing mistake: When Lafayette unlocks the door to let Tara into his house, you can see that he barely touches the lock, and is merely pretending to turn an already unlocked deadbolt. (00:17:55)
Continuity mistake: When Andy's half-fairy daughters attempt to buy alcohol at the convenience store, they place a pack of beer on the counter. In the next shot, a pack of cigarettes, on top of the beer, appears out of nowhere. (00:13:20)
Character mistake: When Bill mentions to Sophie-Anne that drinking the maenad's blood poisoned him, she says that vampires can only feed off human blood. However, across the show, we've seen vampires drink from fairies, werewolves and even the blood of other vampires, like Lilith's blood. (00:05:50)
Burning Down the House - S4-E10
Revealing mistake: When Terry drives away from Fort Bellefleur, leaving Andy to walk home on his own, you can see the red tail lights when the actor stops behind the trees. (00:49:20)
Continuity mistake: When Jason is talking to Andy at the Merlottes', he sticks his fork backwards into his sandwich. A couple of shots later, the fork has mysteriously disappeared, and there's not even a hole or mark in the sandwich. The fork reappears a few shots later. (00:36:10)
Continuity mistake: During the trial, when a vampire suffers the punishment of having his fangs wrenched out with pliers, the amount and position of the blood on his face changes repeatedly between shots. (00:23:35)
Continuity mistake: When Jason is impersonating the God Who Comes, the position of the blue rope tying Sam to the roof of the car, keeps changing position between shots. For example, when Mike Spencer says, "You're the God Who Comes?", the rope is under Sam's chest; in other shots, it's behind his neck. (00:33:30)
Revealing mistake: When Jason is having sex with Dawn, he is completely naked, but as he looks at himself in the mirror while they continue to have sex, you can see that actor Ryan Kwanten is wearing blue underpants. (00:16:50)
Continuity mistake: When Jason is in his bunk house at the Light of Day institute at the beginning of the episode, as he takes off his tie one of the buttons of his shirt is undone. A couple of shots later, his shirt magically buttons itself back up. (00:01:45)
Continuity mistake: When Jason and Brigette clink the beer bottles, in the first shot, the bottle caps are still on. In the next shot, the caps have vanished into thin air. (00:37:40)
Continuity mistake: In the scene where Tara is handcuffed to the table by Lafayette and she is asking her mother to let her go, her strap of her vest top keeps moving up and down her arm.
Continuity mistake: When Arlene and Terry bring their baby to work, as the baby is being introduced to Sookie, the angle of his left arm keeps changing between shots. (00:19:00)
Audio problem: When Jessica is talking to Pam at the ladies' room at Fangtasia, as Pam says, "You have no reason to feel guilty", her head is seen from behind, but the words don't match the motion of her jaw. (00:45:25)
Audio problem: When Roman is addressing Bill and Eric, as he says, "To meet under these circumstances", his lips don't move until he says the word "circumstances". (00:46:05)
Continuity mistake: After Sookie discovers that the rednecks are plotting to kill the vampires, as she attempts to get Sam to intervene, Sam places two mugs of beer on the counter. The mugs keep alternating between being full and half full between shots. (00:39:00)
Continuity mistake: When Jason is confronted by the son of Sharon Singer at the sheriff's office, his arms keep changing position; most notably, when the kid attacks him, Jason's right arm goes from being over the kid's arm to being pinned between shots. (00:25:30)
Answer: Pam doesn't have to be with Eric 24/7.